Abstract
In the present study, the influence of concave geometry shoulder tool of FSW on weld quality was analysed by using Acoustic Emission and Image processing techniques has been done. The interaction of tool shoulder with base material in the arrangement of friction stir weld is studied by contemplated the banded texture of weld bead surface using image processing techniques. Experiments are carried out by capturing the images of weld bead surface of friction stir welded specimens produced using different process parameters. The images are digitally processed and analysed by characterizing locale of interest along good and defect weld region based on X-Ray radiography and AE results of friction stir welded specimens to determine first order and second order measurable statistical textural parameters of weld bead surface using MATLAB
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